Two new dammarane-type sapogenins from Gynostemma pentaphyllum  

作　　者：Xia Li Jia Qing Cao Lin Shi Yu Qing Zhao 

机构地区：[1]School of Traditional Chinese Materia Medica,Shenyang Pharmaceutical University,Shenyang 110016,China [2]College of Food Science,Shenyang Agriculture University,Shenyang 110866,China

出　　处：《Chinese Chemical Letters》2011年第12期1461-1464,共4页中国化学快报（英文版）

基　　金：financially supported by E&T Modern Center for Natural Products of Liaoning Province of China (No.2008402021)

摘　　要：Two new sapogenins,named（20S,24R）-3β,20,21β,25-tetrahydroxy-21,24-cyclodammarane（1）and 3β-hydroxyetio-17β-dammaranic acid（2）,were isolated from the alkaline hydrolysate of Gynostemma pentaphyllum saponins.Their structures were elucidated by spectroscopic methods.Two new sapogenins,named（20S,24R）-3β,20,21β,25-tetrahydroxy-21,24-cyclodammarane（1）and 3β-hydroxyetio-17β-dammaranic acid（2）,were isolated from the alkaline hydrolysate of Gynostemma pentaphyllum saponins.Their structures were elucidated by spectroscopic methods.

关 键 词：Gynostemma pentaphyllum Sapogenin Alkaline hydrolysate 

分 类 号：TQ424.3[化学工程] O629.13[理学—有机化学]